Window blind



FIG. 1 is a perspective view of a window blind showing my new design, according to a first state of use of the window blind where the curtain of the window blind is half closed;

FIG. 2 is an enlarged, partial view of area 2-2 of the window blind of FIG. 1;

FIG. 3 is an enlarged, partial top plan view of area 3-3 of the window blind of FIG. 2;

FIG. 4 is an enlarged, partial bottom plan view of area 4-4 of the window blind of FIG. 2;

FIG. 5 is an enlarged, partial right side elevational view of the window blind of FIG. 2;

FIG. 6 is an enlarged, partial front elevational view of the window blind of FIG. 2;

FIG. 7 is an enlarged, partial rear elevational view of the window blind of FIG. 2;

FIG. 8 is a perspective view of the window blind showing my design, according to a second state of use of the window blind where the curtain of the window blind is fully closed;

FIG. 9 is an enlarged, partial view of area 9-9 of the window blind of FIG. 8;

FIG. 10 is a perspective view of the window blind showing my design, according to a third state of use of the window blind where the curtain of the window blind is fully opened; and,

FIG. 11 is an enlarged, partial view of area 11-11 of the window blind of FIG. 10.

The enlarged left side elevational view is a mirror image of the enlarged right side elevational view shown in FIG. 5.

The broken lines in the drawings depict portions of the window blind that form no part of the claim. 

CLAIM The ornamental design for a window blind, as shown and described. 